<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="教材标题" prop="title">
        <el-input
          v-model="queryParams.title"
          placeholder="请输入教材标题"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="作者" prop="author">
        <el-input
          v-model="queryParams.author"
          placeholder="请输入作者"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="ISBN编号" prop="isbn">
        <el-input
          v-model="queryParams.isbn"
          placeholder="请输入ISBN编号"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="版本号" prop="edition">
        <el-input
          v-model="queryParams.edition"
          placeholder="请输入版本号"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="出版社" prop="publisher">
        <el-input
          v-model="queryParams.publisher"
          placeholder="请输入出版社"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="出版日期" prop="publicationDate">
        <el-date-picker clearable
          v-model="queryParams.publicationDate"
          type="date"
          value-format="yyyy-MM-dd"
          placeholder="请选择出版日期">
        </el-date-picker>
      </el-form-item>
      <el-form-item label="创建者" prop="createBy">
        <el-input
          v-model="queryParams.createBy"
          placeholder="请输入创建者"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="创建时间" prop="createTime">
        <el-date-picker clearable
          v-model="queryParams.createTime"
          type="date"
          value-format="yyyy-MM-dd"
          placeholder="请选择创建时间">
        </el-date-picker>
      </el-form-item>
      <el-form-item label="更新者" prop="updateBy">
        <el-input
          v-model="queryParams.updateBy"
          placeholder="请输入更新者"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="更新时间" prop="updateTime">
        <el-date-picker clearable
          v-model="queryParams.updateTime"
          type="date"
          value-format="yyyy-MM-dd"
          placeholder="请选择更新时间">
        </el-date-picker>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['motr:textbook:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['motr:textbook:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['motr:textbook:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['motr:textbook:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="textbookList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="自增主键标识" align="center" prop="id" />
      <el-table-column label="教材标题" align="center" prop="title" />
      <el-table-column label="作者" align="center" prop="author" />
      <el-table-column label="ISBN编号" align="center" prop="isbn" />
      <el-table-column label="版本号" align="center" prop="edition" />
      <el-table-column label="出版社" align="center" prop="publisher" />
      <el-table-column label="出版日期" align="center" prop="publicationDate" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.publicationDate, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="创建者" align="center" prop="createBy" />
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="更新者" align="center" prop="updateBy" />
      <el-table-column label="更新时间" align="center" prop="updateTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.updateTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="备注" align="center" prop="remark" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['motr:textbook:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['motr:textbook:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改教材信息对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="教材标题" prop="title">
          <el-input v-model="form.title" placeholder="请输入教材标题" />
        </el-form-item>
        <el-form-item label="作者" prop="author">
          <el-input v-model="form.author" placeholder="请输入作者" />
        </el-form-item>
        <el-form-item label="ISBN编号" prop="isbn">
          <el-input v-model="form.isbn" placeholder="请输入ISBN编号" />
        </el-form-item>
        <el-form-item label="版本号" prop="edition">
          <el-input v-model="form.edition" placeholder="请输入版本号" />
        </el-form-item>
        <el-form-item label="出版社" prop="publisher">
          <el-input v-model="form.publisher" placeholder="请输入出版社" />
        </el-form-item>
        <el-form-item label="出版日期" prop="publicationDate">
          <el-date-picker clearable
            v-model="form.publicationDate"
            type="date"
            value-format="yyyy-MM-dd"
            placeholder="请选择出版日期">
          </el-date-picker>
        </el-form-item>
        <el-form-item label="备注" prop="remark">
          <el-input v-model="form.remark" placeholder="请输入备注" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listTextbook, getTextbook, delTextbook, addTextbook, updateTextbook } from "@/api/motr/textbook";

export default {
  name: "Textbook",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 教材信息表格数据
      textbookList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        title: null,
        author: null,
        isbn: null,
        edition: null,
        publisher: null,
        publicationDate: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        title: [
          { required: true, message: "教材标题不能为空", trigger: "blur" }
        ],
        author: [
          { required: true, message: "作者不能为空", trigger: "blur" }
        ],
        isbn: [
          { required: true, message: "ISBN编号不能为空", trigger: "blur" }
        ],
        edition: [
          { required: true, message: "版本号不能为空", trigger: "blur" }
        ],
        publisher: [
          { required: true, message: "出版社不能为空", trigger: "blur" }
        ],
        publicationDate: [
          { required: true, message: "出版日期不能为空", trigger: "blur" }
        ],
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询教材信息列表 */
    getList() {
      this.loading = true;
      listTextbook(this.queryParams).then(response => {
        this.textbookList = response.rows;
        this.total = response.total;
        this.loading = false;
      }).catch(error => {
        this.loading = false;
        if (error.response && error.response.status === 404) {
          this.$modal.msgError("权限不足：您当前的角色没有访问教材信息模块的权限。请联系系统管理员为您分配相应的权限后重新登录。");
        } else if (error.response && error.response.status === 403) {
          this.$modal.msgError("访问被拒绝：您没有执行此操作的权限，请联系管理员获取相应权限。");
        } else if (error.response && error.response.status === 401) {
          this.$modal.msgError("登录已过期，请重新登录后再试。");
        } else {
          this.$modal.msgError("获取教材信息失败，请检查网络连接或联系技术支持。错误信息：" + (error.message || '未知错误'));
        }
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        title: null,
        author: null,
        isbn: null,
        edition: null,
        publisher: null,
        publicationDate: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
        remark: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加教材信息";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getTextbook(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改教材信息";
      }).catch(error => {
        if (error.response && error.response.status === 404) {
          this.$modal.msgError("权限不足：您没有查看教材详情的权限，请联系管理员。");
        } else if (error.response && error.response.status === 403) {
          this.$modal.msgError("访问被拒绝：您没有访问此教材信息的权限。");
        } else {
          this.$modal.msgError("获取教材详情失败：" + (error.message || '未知错误'));
        }
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateTextbook(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            }).catch(error => {
              if (error.response && error.response.status === 404) {
                this.$modal.msgError("权限不足：您没有修改教材信息的权限，请联系管理员。");
              } else if (error.response && error.response.status === 403) {
                this.$modal.msgError("访问被拒绝：您没有修改此教材的权限。");
              } else if (error.response && error.response.status === 400) {
                this.$modal.msgError("数据验证失败：请检查输入的信息是否正确。");
              } else {
                this.$modal.msgError("修改教材信息失败：" + (error.message || '未知错误'));
              }
            });
          } else {
            addTextbook(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            }).catch(error => {
              if (error.response && error.response.status === 404) {
                this.$modal.msgError("权限不足：您没有新增教材信息的权限，请联系管理员。");
              } else if (error.response && error.response.status === 403) {
                this.$modal.msgError("访问被拒绝：您没有新增教材的权限。");
              } else if (error.response && error.response.status === 400) {
                this.$modal.msgError("数据验证失败：请检查输入的信息是否正确，ISBN可能已存在。");
              } else {
                this.$modal.msgError("新增教材信息失败：" + (error.message || '未知错误'));
              }
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除教材信息编号为"' + ids + '"的数据项？').then(function() {
        return delTextbook(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch((error) => {
        // 如果用户取消删除，不显示错误信息
        if (error === 'cancel') {
          return;
        }
        // 处理删除失败的情况
        if (error.response && error.response.status === 404) {
          this.$modal.msgError("权限不足：您没有删除教材信息的权限，请联系管理员。");
        } else if (error.response && error.response.status === 403) {
          this.$modal.msgError("访问被拒绝：您没有删除此教材的权限。");
        } else if (error.response && error.response.status === 400) {
          this.$modal.msgError("删除失败：该教材可能正在被使用，无法删除。");
        } else if (error.response) {
          this.$modal.msgError("删除教材信息失败：" + (error.message || '未知错误'));
        }
      });
    },
    /** 导出按钮操作 */
    handleExport() {
      try {
        this.download('motr/textbook/export', {
          ...this.queryParams
        }, `textbook_${new Date().getTime()}.xlsx`)
      } catch (error) {
        console.error('导出教材信息失败:', error)
        if (error.response) {
          const status = error.response.status
          if (status === 404) {
            this.$modal.msgError('您没有导出教材信息的权限，请联系管理员')
          } else if (status === 403) {
            this.$modal.msgError('权限不足，无法导出教材信息')
          } else if (status === 401) {
            this.$modal.msgError('登录已过期，请重新登录后再试')
          } else {
            this.$modal.msgError('导出教材信息失败，请稍后重试')
          }
        } else {
          this.$modal.msgError('导出教材信息失败，请检查网络连接')
        }
      }
    }
  }
};
</script>
